Quantum control limited by quantum decoherence
文献类型：期刊论文
| 作者 | Sun, CP ; Xue, F; Yu, SX; Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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| 刊名 | PHYSICAL REVIEW A
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| 出版日期 | 2006 |
| 卷号 | 73期号:1页码:- |
| 关键词 | Computation Evolution |
| ISSN号 | 1050-2947 |
| 英文摘要 | We describe quantum controllability under the influences of the quantum decoherence induced by the quantum control itself. It is shown that, when the controller is considered as a quantum system, it will entangle with its controlled system and then cause quantum decoherence in the controlled system. In competition with this induced decoherence, the controllability will be limited by some uncertainty relation in a well-armed quantum control process. In association with the phase uncertainty and the standard quantum limit, a general model is studied to demonstrate the possibility of realizing a decoherence-free quantum control with a finite energy within a finite time. It is also shown that if the operations of quantum control are to be determined by the initial state of the controller, then due to the decoherence which results from the quantum control itself, there exists a low bound for quantum controllability. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000235008900116 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/6059]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, CP,Xue, F,Yu, SX,et al. Quantum control limited by quantum decoherence[J]. PHYSICAL REVIEW A,2006,73(1):-. |
| APA | Sun, CP,Xue, F,Yu, SX,&Xue, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Quantum control limited by quantum decoherence.PHYSICAL REVIEW A,73(1),-. |
| MLA | Sun, CP,et al."Quantum control limited by quantum decoherence".PHYSICAL REVIEW A 73.1(2006):-. |
入库方式： OAI收割
来源：理论物理研究所
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